參數資料
型號： AS1322A-BTTT
廠商： AUSTRIAMICROSYSTEMS AG
元件分類： DC/DC變換器
英文描述： Adj., 315mA, 1.2 MHz, Boost; Package Type: TSOT23-6; Miscellaneous: Operation; Miscellaneous: with Automatic Powersave
中文描述： 低電壓，微功耗，型DC - DC升壓轉換器
封裝： TSOT23-6
文件頁數： 13/18頁
文件大小： 900K
代理商： AS1322A-BTTT
wwwaustriamcrosystems.com/DC-DC_Step-Up/AS1322
Revision 1.09
13 - 18
AS1322
Datasheet - Application Information
Figure 22. Efficiency Comparison of Different Inductors, V
IN
= 1.5V, V
OUT
= 3.3V
90
9.2.2 Output Capacitor Selection
Low ESR capacitors should be used to mnimze V
OUT
ripple. Multi-layer ceramc capacitors are recommended since they have extremely low
ESR and are available in small footprints. A 2.2 to 10μF output capacitor is sufficient for most applications. Larger values up to 22μF may be
used to obtain extremely low output voltage ripple and improve transient response.
An additional phase lead capacitor may be required with output capacitors larger than 10μF to maintain acceptable phase margin. X5R and X7R
dielectric materials are recommended due to their ability to maintain capacitance over wide voltage and temperature ranges.
Input Capacitor Selection.
Low ESR input capacitors reduce input switching noise and reduce the peak current drawn fromthe battery.
Ceramc capacitors are recommended for input decoupling and should be located as close to the device as is practical. A 4.7μF input capacitor
is sufficient for most applications. Larger values may be used without limtations.
Diode Selection.
A Schottky diode should be used to carry the output current for the time it takes the PMOS synchronous rectifier to switch
on. For V
OUT
< 4.5V a Schottky diode is optional, although using one will increase device efficiency by 2 to 3%.
Note:
Do not use ordinary rectifier diodes, since the slow recovery times will compromse efficiency.
Table 6. Recommended Output Capacitor
Part Number
C
TC Code
Rated Voltage
Dimensions (L/W/T)
Manufacturer
Taiyo Yuden
JMK212BJ226MG-T
相關PDF資料
PDF描述
AS1322B-BTTT Adj., 315mA, 1.2 MHz, Boost; Package Type: TSOT23-6; Miscellaneous: with Continuous Switching
AS1323-BTTT-27 1.6μA Iq, Single Cell, Boost; Package Type: TSOT23-5; Output Range: 2.7V
AS1323-BTTT-30 1.6μA Iq, Single Cell, Boost; Package Type: TSOT23-5; Output Range: 3.0V
AS1323-BTTT-33 1.6μA Iq, Single Cell, Boost; Package Type: TSOT23-5; Output Range: 3.3V
AS1324-BTTT-AD 600mA Buck Converter; Package Type: TSOT23-5; Output Range: 0.6V to Vin
相關代理商/技術參數
參數描述
AS1322A-TT_EK_ST 功能描述:AS1322 - DC/DC, Step Up 1, Non-Isolated Outputs Evaluation Board 制造商:ams 系列:- 零件狀態(tài):有效 主要用途:DC/DC，步升 輸出和類型:1，非隔離 功率 - 輸出:- 電壓 - 輸出:2.5 V ~ 5 V 電流 - 輸出:570mA 電壓 - 輸入:1 V ~ 5 V 穩(wěn)壓器拓撲:升壓 頻率 - 開關:1.2MHz 板類型:完全填充 所含物品:板 使用的 IC/零件:AS1322 標準包裝:1
AS1322B 制造商:AMSCO 制造商全稱:austriamicrosystems AG 功能描述:Low Voltage, Micropower, DC-DC Step-Up Converters
AS1322BBTTT 制造商:AMS 功能描述:IC STEP-UP DC/DC CONVERTER 6-SOT-23
AS1322B-BTTT 功能描述:IC REG BOOST SYNC ADJ TSOT23-6 RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關穩(wěn)壓器 系列:- 標準包裝:250 系列:- 類型:降壓（降壓） 輸出類型:固定 輸出數:1 輸出電壓:1.2V 輸入電壓:2.05 V ~ 6 V PWM 型:電壓模式 頻率 - 開關:2MHz 電流 - 輸出:500mA 同步整流器:是 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:6-UFDFN 包裝:帶卷 (TR) 供應商設備封裝:6-SON（1.45x1） 產品目錄頁面:1032 (CN2011-ZH PDF) 其它名稱:296-25628-2
AS1322-EB 制造商:ams 功能描述:AS1322 Evaluation Board
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